I’m just starting with unreal and learning to create the materials. The mask nodes I use to choose which channel to use and then with the node vector parameter I assign the color, I followed this tutorial [link text][1] to change the color of the channels. I wanted to apply your idea of connecting directly from the red and green channel without using the mask nodes. But if I directly connect the channel to the multiplier node then how can I change the color? I Also change the value of the alpha to one but nothing happens. Something that happens in the material is also that if I change the color of the tube, the detail of the green channel changes to that same color. the only way to change the color of the detail is to put it in a negative number. I attached 2 images for you to see. Thanks for all your help Steve
